all 3 `_in_target` function definitions don't check for `None` value. This makes it impossible to delete a group description:
On a testing VyOS:
```
configure
delete firewall
set firewall name test description test
commit
```
I expect the description to be deleted when I run this Ansible task:
```
- name: Delete description
vyos.vyos.vyos_firewall_global:
config:
group:
address_group:
- name: test
state: replaced
```
But nothing happens.
Because the function is defined in 3 locations, including in the utils, I will also swap the other 2 to the utils function.
The fix is quite easy, and I already have the code ready. I will push it just after creating this issue. Just give me 5 minutes :)